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/**
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* Copyright 2020 Garrit Franke
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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use crate::generator;
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use crate::lexer;
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use crate::parser;
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use crate::Lib;
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use std::fs::File;
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use std::io::Read;
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use std::io::Write;
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use std::path::PathBuf;
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pub fn build(in_file: &PathBuf, out_file: &PathBuf) -> Result<(), String> {
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let mut file = File::open(in_file).expect("Could not open file");
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let mut contents = String::new();
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file.read_to_string(&mut contents)
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.expect("Could not read file");
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let tokens = lexer::tokenize(&contents);
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let mut program = parser::parse(tokens, Some(contents))?;
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// C Backend currently does not support stdlib yet, since not all features are implemented
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if cfg!(feature = "backend_node") {
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let stdlib = build_stdlib();
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program.merge_with(stdlib);
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}
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let output = generator::generate(program);
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let mut file = std::fs::File::create(out_file).expect("create failed");
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file.write(output.as_bytes()).expect("write failed");
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file.flush().expect("Could not flush file");
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Ok(())
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}
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fn build_stdlib() -> parser::node_type::Program {
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let stdlib_raw =
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Lib::get("stdio.sb").expect("Standard library not found. This should not occur.");
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let stblib_str =
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std::str::from_utf8(&stdlib_raw).expect("Could not interpret standard library.");
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let stdlib_tokens = lexer::tokenize(&stblib_str);
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parser::parse(stdlib_tokens, Some(stblib_str.into())).expect("Could not parse stdlib")
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}
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